docs: def application_calendar(self, application_calendar_id):
          """Creates and Retrieves authorization for an application calendar
  
          :param string application_calendar_id: The Id for this application calendar
          :return: Dictionary containing auth tokens, expiration info, and response status.
          :rtype: ``dict``
          """
          response = self.request_handler.post(
              endpoint='application_calendar',
              data={
                  'client_id': self.auth.client_id,
                  'client_secret': self.auth.client_secret,
                  'application_calendar_id': application_calendar_id,
              })
          data = response.json()
          token_expiration = (datetime.datetime.utcnow() + datetime.timedelta(seconds=data['expires_in']))
          self.auth.update(
              token_expiration=token_expiration,
              access_token=data['access_token'],
              refresh_token=data['refresh_token'],
          )
          return {
              'access_token': self.auth.access_token,
              'refresh_token': self.auth.refresh_token,
              'token_expiration': format_event_time(self.auth.token_expiration),
              'sub': data.get('sub'),
              'application_calendar_id': data.get('application_calendar_id')
          }